AS16509 144.220.128.0/21 CIDR and IP Range Summary.ASN: 16509 - Amazon.com Inc.Host Count: 2046Addressable IPs: 2048144.220.128.0/24144.220.129.0/24144.220.130.0/24144.220.131.0/24144.220.132.0/24144.220.133.0/24144.220.134.0/24144.220.135.0/24